Granted Patent
Utility
US 5,715,756 · App. 08/663,007
Ride attraction anti-roll back system
Inventors:
Frank Weigand, Alan Black, Nick Drobnis
Patented Case
View Patent ↗
Granted: Feb 10, 1998
Filed: Jun 7, 1996
Inventors
Frank Weigand
Alan Black
Nick Drobnis
Assignee (at issue)
Universal Studios LLC
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.